Conventional two-dimensional echocardiography parameters in the investigated groups.

<p>Conventional two-dimensional echocardiography parameters in the investigated groups.</p

Receiving operating characteristics (ROC) curve for the selected echocardiographic parameters in relation to the peak VO2 values.

<p>Receiving operating characteristics (ROC) curve for the selected echocardiographic parameters in relation to the peak VO2 values.</p

Receiving operating characteristics (ROC) curve for the selected echocardiographic parameters in relation to the peak VO2 values.

<p>Receiving operating characteristics (ROC) curve for the selected echocardiographic parameters in relation to the peak VO2 values.</p

Two–and three-dimensional speckle tracking echocardiography parameters in the investigated groups.

<p>Two–and three-dimensional speckle tracking echocardiography parameters in the investigated groups.</p

Receiving operating characteristics (ROC) curve for the selected echocardiographic parameters in relation to the VE/VCO2 slope values.

<p>Receiving operating characteristics (ROC) curve for the selected echocardiographic parameters in relation to the VE/VCO2 slope values.</p

Correlation between the parameters of cardiopulmonary exercise testing and echocardiographic parameters.

<p>Correlation between the parameters of cardiopulmonary exercise testing and echocardiographic parameters.</p

Demographic characteristics and clinical parameters of the study population.

<p>Demographic characteristics and clinical parameters of the study population.</p